cd "__________"

//Using the merged dataset produced in the other subfolder "merge_1"
use "PM10_locoff_merge.dta", clear

merge 1:1 city_chinese year name using secretary_aft_vars
drop if _merge==2
drop _merge
merge 1:1 city_chinese year mayor_name using mayor_aft_vars
drop if _merge==2
drop _merge

save PM10_locoff_befandaft_merge, replace
